Originally Posted by Rocket42

Hey Colin thanks man I really like running the Hyper 8.5 it justs suits my driving style. Its great to be back running the car but I still have a few new car bugs to work out of it.

DVP where did you purchase the engine? The older engines came with that setup one .2mm shim and one .1mm shim. It really works fine and my current engine is one out of the same batch. Everything about the engine is the same as the newer batch except the head shimming. You may want to pressure test the carb for the air leak issue. I will shoot you a pm

Satoch the newer versions of the engine include a slightly higher deck ht. This was done to make the engines easier to tune and improve reliability. they feature one .2mm alumn. shim and two .1mms shims.

tmizzle +1