No special head or valve work, probably should have.

Just stock high performance heads from the Chevy store.

Incanel severe duty valves.

When it comes time to do the heads, probably in 150 hrs, thats the next trick.

L.S.

Ls, did you have the blowers rebuilt? if so, by who.

thanks for the info

The best is the Blower shop for rebuilds.

Mcollstn, i am using Dart or possibly merlin 310cc.with mild econo port. But i will need to stick with current 177 blowers. Are u saying that i will have trouble spinning the little weiand's fast enough(with my stock 3" pulleys) to get back my original boost of 5-6lbs. If that is so then can i raise the static Comp. to maybe 8:1. They r currently 7.5:1.

A reputable engine builder said this could be achieved just by increasing the rod length slightly???

Any one care to advise

He must be on dust!!!!

hey jc....care to explain why??

He wants to change compression height by putting a longer rod in.The right way Dwayne is to put the right piston in the motor to make the compression you want.Adjust compression without changing your deck height.Blower motors like the piston in the bore about .015-.025 in the cylinder.Your merc motor is about that now.

Rod length will not increase or decrease compression ratio.

Thanks for the info Jeff, i guess the question is, will i be able to maintain 5-6 lbs boost with my current blower set up while maintaing 7.5:1 comp?

no problem.