Vintage Mustang Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
910 Posts
Discussion Starter #1
We had a "Night of Fire" racing Saturday night at the the dragstrip featuring some Jet powered cars. It was quite a show.
I took my car to race in the trophy class because it only cost $5.00 more to race than to watch.
My last trip to the track I ran a best time of 14.27 @95 mph.
Since then, I replaced my fuel pump with a carter high-volume and switched from a 625 cfm carb to a 750.
Saturday night I ran a best time of 13.44 at 100 mph.
My 0-60 ft time was 1.92 on my BFG's radial t/a's.
Now that's more like it..... :D
 

·
Registered
Joined
·
1,293 Posts
Wow, great time and nice looking car. What's your combo? Better yet, how big is your trophy? :D
 

·
Registered
Joined
·
1,481 Posts
Kevin-- Nice Improvement... What are the specs on your engine? What carb brand did you go with? Did you make any jet changes? I am in the process of jet changes on similar set up (70 351C 4v) and it would be good to know where someone else stands.
 

·
Registered
Joined
·
910 Posts
Discussion Starter #7
Thanks.
My combo is a 71 351C 2v.
bored .030, And Balanced.
flat-top hypereutectics (Kieth Blacks)
Comp cams 270H
Crane Energizer roller rockers
Wieand xcellerator intake
Currently a Carter 750 carb
Carter HV fuel pump, holley pressure regulator
MSD 6A, with MSD probillet dist.
Heads are NOT ported.
SS valves with Bronze guides, Hardened seats.
Hooker Headers
C-4 with an Edge perfomance 2700 stall converter.
3.50 Trac-loc 9"
That's all off the top of my head, I am sure I am forgetting something. ::
 

·
Registered
Joined
·
910 Posts
Discussion Starter #8
My Jet sizes are:
.113 mains
.104 secondaries
I may jump up the secondaries and try it again.. :eek:
 

·
Gone but never forgetten
Joined
·
25,239 Posts
OK, I'm jealous! :: I've been scratching and clawing to get my 289 into the 13's, and am still .08 seconds away (best time was a 14.08 @ 99.6 mph).

Nice job. What carb did you have before? That's an amazing difference from a carb change! Do you feel most of the difference is in the carb or you just getting better at racing it?
 

·
Premium Member
Joined
·
2,511 Posts
Feels good to be in the 13's doesn't it?? Just wait, next you'll be wanting that even tougher 12 number.

I'm maybe looking at getting mine back to the track in September. I've made some changes and I could possibly (cross my fingers) run 12's. All my 1/8th mile numbers say I'm right on the edge. We'll see.

Congrats. :: ::
 

·
Registered
Joined
·
6,911 Posts
[Sarcasm]

Dude, that's waaaay to much carburetor...

Look at the CFM charts! :D :: ;)

[/Sarcasm]


NAAHHHHH!!!! he just needs a holley!!!!!
 

·
Registered
Joined
·
910 Posts
Discussion Starter #12
I tried the holley, and the carter perfomed much better.
I may not know my holley's, so I can't say for sure which one is better. But I can say this Carter runs the best out of all the carbs I have tryed.
 
1 - 12 of 12 Posts
Top