Ford Engine HELP...

[J Halsey Jr]

Freddie looks like you dont have enough rearend gear.I would think you need at least 4.88.

[69Cobra]

Originally Posted by J Halsey Jr

Freddie looks like you dont have enough rearend gear.I would think you need at least 4.88.

x2
I'm a four speed guy but I don't think I would recommend going from a 3 speed to a 2 speed glide with a small cube motor. I would maybe talk to Pro Trans or JPT about a tranny and look in to the intake and rear gear. I would also second the post about getting it on a dyno. It might cost you up front but it will save you in the end and you know where your at. Just my .02

[Bill Harris]

3.73 !!!!
You gotta be kidding. You have a small block that is good for well over 8000 RPM and your are using a 5000 RPM converter and a 3.73 gear????? WAY wrong. I would expect to see a converter in the 6000 range and a 5.83 to 6.00 rear gear. What MPH did you go on the few passes you did make? The MPH will tell you if you have enough HP. If you are running 122+ MPH, you have pleny of power, you just aren't getting that thing moving off the line. A 60' of 1.72 speaks volumes. You should be under 1.40 to go mid 10's.

[Freddie]

Best MPH was 119, consistantly 99/101 in the 1/8th.

[Stephen & Horace Johnson]

Originally Posted by Freddie

Best MPH was 119, consistantly 99/101 in the 1/8th.

if this is the mph you are running then your car is running out of steam, my street car runs 124mph in the 1/4 in 99mph in the 1/8. This is a n/a 331 with a 5speed. You need more gear under this car....ala 4.30-4.56

[Bill Harris]

I agree, your running out of HP on the top end. Even so, if you had a respectable 60 in the low 1.40's you should be running 11.0's with what you have. Your not going to get there without a lot more gear.
I don't see where a glide is gonna help. There is no reason on earth why you shouldn't be able to get your C4 to live long and work great. There are c4's behind 750+ HP big blocks that do just fine.

[Freddie]

What gear are you guys running in your Auto SS cars? I have had people tell me the 3.73's were great for what i want to run, and yet others say I need at least a 4.30. I know most SS cars make the absolute most out of what they are allowed.

[RPM5595]

The PG will absoluteley kill the ets. I cant believe someone told you 3.73's were the way to go. With a 28" tire I would recommend either a 4.56 or 4.86 depending on how high you want to spin it. The other thing that draws a red flag for me is the mph you have seen and I would MAKE SURE the valve springs are up to snuff. Just because you dont hear a audible "valve float" doesnt mean they arent out of control. As others have said the dyno may help but if it's still in the car I would try the new rear gears first WITH a C4. 3.73's had to be killing that poor thing. Hope this helps.
Jay