Hello and Guidance please

[Blind Squirrel]

I've been hanging around for awhile but just recently signed up. First, a big (wait I'm in the Small Block area huh?) small hello from the big Pacific Northwest. I've recently expanded my horizons and pick up a semi nice 1970 A-body 360/727/8.25. Mostly I've been a "Shove it or leave it" kind of guy. What can I say, I still have the first car I bought in high school (57 chev) and that was a long long time ago. Anyway, I came across a brand new, never fired P5007647 402 crate motor @ half the price of list. Hope it was a good buy/choice. The guidance I'm looking for is: What should I use for the rest of the running gear? I have a new 390 posi chunk but no housing as of yet and I can get my hands on an A518 instead of the 727. I have no knowledge of the rearend presently in the car other than listed. The car will see the track about 12 times a year. 1/8 mile runs mostly, 7.50 or slower. I'd like to make some fun runs and cruises without needing 10 hours of sleep and a bowl of Wheaties in the morning to start recovery. Fabrication and skill set is not a problem and a reasonable budget is available. Also, I want to staying naturally aspirated and with no power adders. Thanks a bunch for your inputs.

 

[AJ/FormS]

You are pretty much set with what you got. Make it fit and have at 'er.

 

[EL5DEMON340]

I would get a 8.75 rear in the car, hope that 3.90 is for that axle, the easy and bullit proof way would be to go with a nice built 727 and a quality converter in the 3,500 to 4,500 rpm range.

 

[EL5DEMON340]

Also if the engine doesn't have a carb don't go with there 750cfm recommendation. I would go with a Holley HP 950.

 

[67Dart273]

The 518 is going to require reworking the floor and crossmember of the car to get it to fit. I read on Transgo that if you go "all manual" on the electronic 518s, you don't need a computer to control them.

What part of the PNW you in?

 

[Blind Squirrel]

I'm over in Washington not DC, near Vancouver not BC. Just spent some time over there at your Firebird track for divisionals. Had a great time, really nice track and awesome people.

There might to be some of those "if I had to do it all over again" stories. Just kind of poking around for those, as you might save this FNG a nightmare or two.