i have a stock 85 stang. i can get a set of e7 heads (62 cc) to replace my e5 heads (68 cc) and if i did the math correctly the CR should go from 8.4 to 9.0 . from what i can gather this should be a bolt on replacement. i would like to continue using regular gas ( it is a DD) and the main question is will i need to replace the pushrods?
do not want to install rollers rockers or anything else. i get decent MPG and it is a nice running DD. hoping for a little better millage with higher compression. advice?
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