Doug,
Dropping the compression on a small cube engine is probably not a great idea
as the engines typically benefit from increased compression when you go to a
larger RV type cam. If you want to try the lower compression ratio consider
the comp cams hi-energy cams that play with valve timing by closing the
intakes earlier to increase compression slightly. They were developed for
the SMOGGER engines to provide a little more power with the OEM lower
compression ratios. The idea cranking compression is 185-190 lbs. Personally
anything below 9.0:1 is too low unless you plan on running some form of
forced induction or BIG nitrous system.
I opted for cubes and purchased a Lunati Stroker kit for a 5.0 and have
349.6 CI with 10.0:1 compression.
Best Regards,
Tim Ronak
Business Development Manager
Akzo Nobel Coatings
OFF: (949) 305-5393
VM: (800) 234-6747 ext. 2257#
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