tips for a 400 - Page 5

petereggy · #61 08-11-2003, 02:01 AM

I have a flat hood

my car is a 80 firebird nothing more nothing less

TorinoGT69 · #62 08-11-2003, 02:02 AM

Yeah you could run a modified HEI dist. be sure to have it recurved for your cam. Put a good coil and I think its either mallory or msd makes an a performance module.

TorinoGT69 · #63 08-11-2003, 02:03 AM

with the flat hood and the rpm intake it is going to be close it may hit.

petereggy · #64 08-11-2003, 02:06 AM

well if it dose hit i will be unhappy because then with the new engine inplace I will be forced to buy a cowl but o well that may b a good thing to get out of the way

petereggy · #65 08-11-2003, 02:08 AM

what kind of distributer did your friend run?

and what dose HEI mean exactly?

Blue02R6 · #66 08-11-2003, 04:44 AM

HEI=High Energy Ignition

petereggy · #67 08-11-2003, 06:04 AM

ahh thanks

I was thinking ppl said it like OEM or something but now i know

PWMAN · #68 08-11-2003, 07:56 AM

Quote:

Originally posted by petereggy
well if it dose hit i will be unhappy because then with the new engine inplace I will be forced to buy a cowl but o well that may b a good thing to get out of the way

You may have to get a really low profile air cleaner, until you get the cowl. The RPM manifold is pretty high.

petereggy · #69 08-11-2003, 06:52 PM

yah but a high rise intake is good and Im going to build the engine out of the car and once its completed and I have the cowl then it will go in

petereggy · #70 08-12-2003, 02:11 AM

Dose anyone know what number heads came on the 69-70 ram air 4

and what characteristics help to identify them?

Blue02R6 · #71 08-12-2003, 03:22 AM

Quote:

Originally posted by petereggy
Dose anyone know what number heads came on the 69-70 ram air 4

and what characteristics help to identify them?

I don't know the numbers but they had round exhaust ports, are rare, and expensive.

petereggy · #72 08-12-2003, 03:23 AM

yah i knew about the ports but thats all i knew

TorinoGT69 · #73 08-12-2003, 08:42 AM

The castings on the ram air IV are 722 in '69 and 614 in '70.

petereggy · #74 08-12-2003, 04:56 PM

alright thanks

what are no.12 and no.13 heads?

and what would be the best cam to run in my 400 made by either comp or crane?

TorinoGT69 · #75 08-12-2003, 07:00 PM

This would be a good substitute for the cam I told you before:
51-225-4 Comp. Cam 284/296, 240/246 @ .050,
.507/.510 lift, 110 degree centerline

no 12 ram air III head
no 13 '70 grand prix/ firebird head

They are both 72cc D-port heads.

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