Upgraded 20hp vanguard

https://www.carrierperformance.net/ Carrier performance rods, pistons, valves, and springs pushing 175psi compression ÷ 13.9psi atmosphere pressure means the engine is well over 12:1 compression ratio will be running C12 VP fuel. Built for stock 0-25hp garden tractor pulls Factory block, crank, heads, manifold, and carb. Here's a good video going into detail on longer connecting rods check out the channel ARC RACING    • Connecting rod length, pros and cons(Preda...