I recently purchased a Classic 18 w/ Ford 351 OMC. She wasn't performing right, only getting up to about 35-40 mph GPS. I had a mechanic take a look at the engine and he told me that cylinder 7 and 8 werent firing due to low compression. He believes I should get new heads and manifolds/risers (rusty). Where is the best/cheapest place to get them online and are there any that I could get that would last longer and/or perform better?
Thanks for all the help in advance!