Help with Piston & Head Gasket selection

[63.5xl]

So I have been playing with the online calculators at   https://www.uempistons.com   and it looks like I am right at 8.0 dynamic compression ratio with the cam I have if I did it right. It said use the intake closing at .050 and add 15 degrees. My cam is 38 degrees intake closing so I put in 53 degrees.
But with the deck height of .031 and gasket of .051, the quench is at .082, do I need to get the quench lower which will raise my compression to do this.?
 Will it run on 87 octane with the H304p dish pistons at 8.0 dynamic CR. I was ok to buy 91, but the more money and time this is taking and gas creeping up on price again. I think I just want it to sound good, exhaust and cam, and drive it.

[machone]

Carl, my only concern with your combo is 3900lb car, close ratio (2.32) 4 speed, 3.5 rear and 29" tires. Might be hard to get it off the line? Easiest and cheapest thing to change are the tire height(lower), second ,rear gear, 3.70 or more if you keep the tire height, (although bearing in mind your highway driving)  With that current setup you will be doing about 2400 @ 60mph, which is fine on highway, but it's the initial takeoff in 1st gear (2.32) which might need some revs to get off the line and maybe chirp the tires pulling a heavy car? Others might have some thoughts on this?

[63.5xl]

I hear ya Machone, gearset is another $580 to change it over to wide ratio. I really like driving the close ratio, once you get moving, but it would make more sense to change it over to a wide. I just have to spend another $580 i don't have. Lol.
Unless i win the lottery and put a 4.11 with a gearvenders behind it.

[jayb]

Carl, even at only 8:1 DCR I don't think I'd run regular in it, you'd be a lot safer running 91.  I think I would run a thinner head gasket (most are about 0.041"), which would give you a little more quench and bump the compression ratio just a little, and run premium fuel. 

[63.5xl]

Jay or anyone else, I run the numbers again on the pistons with the actual cc number for the piston dome. I have the 304p's all ready but I called and I can return them, plus they were only $100 for the set, o which set should I stick with?
all the following with .040 gasket and the cam I have
H304p dish is 12.8 cc                Compression Distance 1.759                         Static CR   9.410 to 1   and     Dynamic CR   8.131 to 1 
JB 1116 dish 9.5 cc                   Compression Distance 1.760                         Static CR   9.723 to 1   and     Dynamic CR   8.396 to 1
H395p flattop 4 reliefs is 6 cc     Compression distance 1.759                         Static CR   10.039 to 1  and    Dynamic CR   8.664 to 1
JB 1131 flattop 4 reliefs is 8 cc   Compression Distance 1.760                         Static CR    9.8.65 to 1  and    Dynamic CR   8.516 to 1

[63.5xl]

I had based tge previous number from a ford 6051 gasket, should i go with a thinner gasket, i see they have some .020 gaskets at summit

[jayb]

You have cast iron heads, right?  I wouldn't go over 8.25:1 for DCR with cast iron heads.  I think I'd stick with the pistons you've got.

[63.5xl]

Thank you for your reply Jay. I will order the ford 6051 head gaskets and put it together,