Summit AFR heads...$1826.59. Bigdog Porting GT40 heads (he furnished the explorer 3 bar heads) $1,085. I would send you a post of the flow that he ''says'' is getting out of these heads but I don't want to advertise for him. He kept giving me dates when they would be ready and then excuses of why they weren't. Like I said, I waited 4 months for these heads. He told me he was working on them about the middle of the 2nd month. I had already bought his ported upper and lower GT 40 intake. He ports the upper which is rare to be ported.if the afr's were only twice as much as ported gt40's you were getting ripped off on the gt40s. A good upgrade either way but you will certainly not be sorry now that they are paid for.
My old AFR165, holley and fti cam made 325. Im pretty sure you will achieve your goalOld thread but an update. I really wanted the ported GT 40 heads from Big Dog Porting but I gave up on them after a 4 month wait and numerous excuses. I bought AFR 165's. I carried the heads along with the upper and lower ported gt40 intake that I had bought from Big Dog, Comp 266hr cam , BBK shorty headers, Scorpian 1.6 rockers, 24LB injectors, 24lb mass air meter to a shop yesterday. It will be dyno tuned and I will give an update on horsepower and torque when I get it back next week. Over 300 hp and I will be happy but....the more the merrier.