The heads are ok, could give upwards of 35 hp w/ an intake.
You will have to buy p-specific headers because of the plug angle/clearance problems.
Although i've heard of people grinding the flanges.
Compared to the edelbrocks.....not even close
The explorer intake(upper) will require some kind of modification/re-route.
I forget what...not a biggie but my buddy used one.
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4.10's,long tubes & 75 shot...Goes 12.50's
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