"Transmission Ratio Calculator" is in Microsoft Excel .xls format. It already includes the number of teeth on all gears and accepts engine RPM, sprocket choice, and wheel diameter as variable inputs, compares over 20 possible internal ratio choices for RPM change on a shift (both in percentages lost and

recovered, and the actual RPM in the new gear), lowest RPM reached in the entire range, speed in MPH reached in each gear, overall gear ratio including final drive sprockets, etc. Click the logo for complete details.

"The Linkert Book" is my complete booklet on the Linkert (L&L) brass Model “M” carburetor, as used on all Harley-Davidson motorcycles 1933-56 (and some until 1964), as well as most Indian twins. Revised February 2008. Click the cover picture for complete details.

"45 Performance" is the complete collection of only my 45 Model power & speed booklets, subject titles including strokers, relieving, porting, factory hot parts, big valves, motor data chart, bore & stroke chart, sprocket ratio chart, transmission ratio charts, racing specs, service tips, more. Click the cover picture for complete details.

"Super-Tuning Amal Monobloc" Carburetors and Intake Systems for British Motorcycles; want more performance from your older Triumph, BSA, Norton, Royal Enfield or Matchless single or twin with Monoblocs? Already have Amal carburetors, but don’t know how to adjust them? Doesn’t run “right”, and won’t

respond to the changes you’ve made? Can’t make any sense of the xeroxed generic 40 year old “instructions”? This will help you. Click the cover picture for complete details.

"Mikuni Tuning for Harley-Davidsons"; for the VM type round-slide carburetors. Want more performance from your Harley-Davidson knucklehead, panhead, 45, or U-Series? Already have a Mikuni carburetor, but don’t know how to adjust it? Doesn’t run “right“, and won’t respond to the changes you’ve

made? Can’t make any sense of the original Japanese “instructions”? Looking for an affordable alternative to replacing or rebuilding your tired Linkert? This booklet will help you. Click the cover picture for complete details.

"Super-Tuning Amal Concentric" Carburetors and Intake Systems for British Motorcycles; want more performance from your older Triumph, BSA, Norton, Royal Enfield or Matchless single, twin or triple with Concentrics? Already have Amal carburetors, but don’t know how to adjust them? Doesn’t run “right”,

and won’t respond to the changes you’ve made? Can’t make any sense of the xeroxed generic 40 year old “instructions”? This booklet will help you, revised June 2007. Click the cover picture for complete details.

"80 Performance" is the complete collection of only my U-Series power & speed booklets, subject titles including strokers, relieving, porting, factory hot parts, motor data chart, racing specs, more. Click the cover picture for complete details.

"British Transmission Ideas"; my comments, hints & shortcuts to installing an early non-unit British 4-spd. box from a Triumph, BSA, Norton, Royal Enfield, etc. in your 45 solo for hand-clutch & foot shift operation, better acceleration, etc. with 15 charts & 22 black & white illustrations. Click the cover picture for complete details.

"Super-Tuning Mikuni VM" Carburetors and Intake Systems for British Motorcycles; for the VM type round-slide carburetors. Want more performance from your older Triumph, BSA, Norton, Royal Enfield or Matchless? Already have Mikuni carburetors, but don’t know how to adjust them? Doesn’t run

“right”, and won’t respond to the changes you’ve made? Can’t make any sense of the original Japanese “instructions”? Looking for an affordable alternative to replacing or rebuilding your tired Amal Monoblocs or Concentrics? This booklet will help you. Click the cover picture for complete details.

"The 45 Magnum"; my comments on installing 900cc 1957-71 iron Sportster cylinders & heads on 45 lower end for killer performance and appearance, very compex, requires heli-arc welding, machining and frame modifications. Includes dimensions, list of required parts, illustrations and diagrams. Click the cover picture for complete details.

"Chrysler Poly Performance" is my comprehensive illustrated booklet on obtaining the best performance from your 1955-66 Dodge, 1955-58 Chrysler, 1955-66 Plymouth, or 1955-58 DeSoto wide-block “poly” motor. Your “obsolete” poly is capable of surprising speed & power, without loss of

reliability. It’s the most complete do-it-yourself literature you can buy to get the most from your poly motor. Before modifying (or even rebuilding) your motor, get the best help available, and do it right the first time. Click the cover picture for complete details.

"Triumph 650 & 750 “B” Range Twin Performance"; want more performance from your pre-unit or unit Triumph twin? Rather than merely summarize and repeat what you’ve already read in Shenton, Taylor, etc. this booklet will focus on more advanced and complex information beyond what’s

currently on the market, but it’s still in progress, expected completion late in 2008. Please note: this will not cover the 350 & 500 unit “C” range engines. Click the cover picture to receive notification when this booklet is available.

"Panhead Rocker Arm Tuning"; want more performance from your 1948-65 panhead EL, FL, FLH &c? Top end seems noisier than it should? Rocker arms and valve stems have strange wear patterns? Installing a high-lift cam and want to maximize results? This booklet will focus on more advanced and complex

information beyond what’s currently available including the factory service manual, Palmer’s book and Shop Dope, but it’s still in progress, expected completion in 2009. Shop owners: this is a great service to add to your customer’s engine rebuild. Click the cover picture to receive notification when this booklet is available.

"Shovelhead & Sportster Rocker Arm Tuning"; want more performance from your 1966-83 shovelhead big twin or 1957-85 ironhead Sportster? Top end seems noisier than it should? Rocker arms and valve stems have strange wear patterns? Installing a high-lift cam and want to maximize results? This

booklet will focus on more advanced and complex information beyond what’s currently available including the factory service manual, Palmer’s book and Shop Dope, but it’s still in progress, expected completion in 2009. Shop owners: this is a great service to add to your customer’s engine rebuild. Click the cover picture to receive notification when this booklet is available.

"Norton Race Manual"; want more performance from your Norton twin? This booklet by Jim Schmidt will help you. Click the cover for more details.

"An Illustrated Guide to Improve the Flathead Oil Feed System"; Flathead Works is pleased to announce this comprehensive and detailed booklet. Shop owners: this is a great service to add to your customer’s high-performance engine work. This booklet is not yet available

; watch this space for details as to the future release date. Click the cover for a larger view in a separate window.