How does this 360 build sound?

The KB190's would run on pump gas? They would have been my first choice but the C/R seemed way too high for that, quench must really make a difference. Are you saying that the KB190s are a better choice for my application?

When you say the cam is too big for my trans/gears, does that mean that drivability will be affected or does that mean that I wouldnt be within my powerband and it would be sluggish from a stop? I should be able to find a ring and pinion set for my rear end if needed, and higher stall should take care of the trans... But I still want to be able to get on the highway.

How big can I run my tires without any cutting involved? Final gear ratio will affect my getting on the highway and acceleration, so going to a manual has been on my mind. There seems to be allot of work involved with cutting the tunnel and drilling the crank, but it seems that it may be worth it.

The Doug headers seem to be the way to go, thanks for that tip.

I ran the 190s on pump gas with no issues, so have others, i think the XE284H would be a better choice then the .484 MP, it'll have better tuneing ability, better vacuum & better perf., top it off with a Perf. RPM & a 750dp, those 3.55s won't really cut the mustard for what your wanting, i'd run at least a 3.91 gear, but 4.10s would be my choice, you can comfirtably fit a 255/60/15 MT under the wheel wells on a 7" rim with everything in the stock location, this tire is right at 27" tall, honestly, how often will you be on the interstate, it'll still be fine, i would boogy all over town running 55-60 with my 4.56s & loved it, a tad bit too much on the highway yeah, but the 4.10s shouldn't be a major issue, plus you'll be glad you have them come time to do some *** kicking, i tried a set of 3.55s i had lying around on this build just for kicks, it was a joke compared to the 4.56s, ran like poo, so you will be disapointed with the 3.55s, unless your just wanting a cruiser.