I recently built my first motor. With the help of an experienced friend. Of course I made a few bad choices 2 years ago when I began it on a budget but I'm just now cranking it up. It's a 355 with dish pistons(unsure on compression) h beam rods and eagle steel crank on bottom. The problem is mainly in the top. First big mistake and most crucial was pro comp heads. Advertised to have already ironed out its old problems. No trick flo or afr heads but should at least be better than stock right??? They're 210 cc intake, 325lbs spring pressure 1.225 open and 140lbs at 1.8 closed and 600 max lift. The cam is a hydraulic flat tappet 214 intake and 224 exhaust at 050. List is 444. My pushrods are 100 longer than stock and have 1.6 ratio roller rocker arms. Summit street and strip carb and stage 2 intake. Somewhere here I made a bad mistake. This bored and cammed 350 is making less power than my old l65 weak 350 bottom end and heads. I am not sure if the double springs are way too much for these summit hydraulic lifters or if these heads are so big i can't make power with these mid range power cam and lifters. Can't afford another set of heads and only have my old heads to put back on. Should I try and go balls to the wall cam and stall (if this will even fix it) or put my old heads on and settle with a bored and cammed decent 350?
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