young olds

im going to throw a 215 together for my opel and was looking for opinions on what compression to go with. stock olds short block, performer intake( have a factory 4bbl as well), an erson tq20 cam, i have shorty headers and manifolds( dont know if the headers will work in the opel. now, i have a set of 2bbl olds heads that will set me about 8.5:1 compression and a set of buick heads that will set me about 10:1 compression. i want to run whichever comp ratio will be better matched to the intake and cam. thanks for your insight

young olds

http://www.pbm-erson.com/Catalog/Ers...t_E/ERSE643121 Cam specs