I have been talking to Rapido Marine out of Florida about a long block Ford 351w for my “66” 16. They have GT40 heads and I will get them put on for an extra charge. I was going to have the standard cam upgraded to a performance one but the guy there said that would be a waste of money. The standard cam specs are Intake 206 at .050 lift 445, and Exhaust 221 at .050 lift 453. He didn’t give me any specs on the upgrade cam but it did come with a valve spring upgrade.(1) Should I get the cam upgrade anyway and what should it be? (2) Has anyone got anything good or bad to say about Rapido Marine?
Bob