Heads issue
Thanks for the insight. I have no doubt these heads will run on pump gas as long as I stick to a cam profile much like the one I ran before....or reuse it. It was a .450/.475 lift with 298/308 duration and I had no preignition (detonation) problems nor did I ever blow a head gasket. I ran stock valve train with hydraulics (Melling) and ran the advance at 32 degrees total. This motor ran well on leaded premium. I plan to run blended unleaded premium and 100LL Avgas. The car is being built as a Sunday driver and possibly a bracket racer.
The heads were done previously by a fairly reputable local shop. Although the car was extremely quick before and ran well, I don't want to box myself into doing the same build all over again; this is why I'm asking questions now while I'm in the development stage. I've made the commitment to use the same pistons and stock rods with a balanced forged crank. Everything else is still negotiable at this point. This is why I'm asking the experts for your opinions. I'd like to be able to run low 12s without nitrous. My engine machinist thinks there should be no problem. I'll try to post some pix. Thanks.
Thanks for the insight. I have no doubt these heads will run on pump gas as long as I stick to a cam profile much like the one I ran before....or reuse it. It was a .450/.475 lift with 298/308 duration and I had no preignition (detonation) problems nor did I ever blow a head gasket. I ran stock valve train with hydraulics (Melling) and ran the advance at 32 degrees total. This motor ran well on leaded premium. I plan to run blended unleaded premium and 100LL Avgas. The car is being built as a Sunday driver and possibly a bracket racer.
The heads were done previously by a fairly reputable local shop. Although the car was extremely quick before and ran well, I don't want to box myself into doing the same build all over again; this is why I'm asking questions now while I'm in the development stage. I've made the commitment to use the same pistons and stock rods with a balanced forged crank. Everything else is still negotiable at this point. This is why I'm asking the experts for your opinions. I'd like to be able to run low 12s without nitrous. My engine machinist thinks there should be no problem. I'll try to post some pix. Thanks.