1970, Straight 6, 3 on the Tree.

[GRX]

First thing you want to do is find out if you have a 250 or a 292.

250 fuel pump is rearward of the motor mount

292 fuel pump is forward of the motor mount

Also, the 292 has a large coolant bypass hose to the water neck. 250 does not.

[HallWood44]

Its a 250. It runs solid just sounds a little rough. Also in 3rd gear it is screaming at 55. Any suggestions on an engine modifications or rebuilds and what to put in the rear end to add some speed. I want to keep it somewhat original but I am going to upgrade a few things.

[EARNHARDT#3]

Originally Posted by HallWood44

Its a 250. It runs solid just sounds a little rough. Also in 3rd gear it is screaming at 55. Any suggestions on an engine modifications or rebuilds and what to put in the rear end to add some speed. I want to keep it somewhat original but I am going to upgrade a few things.

I thought my 250 was screaming at 55 too. After I put a tach in my truck though I realized it was just a noisy old truck and it can cruise at 75-80mph no problem.

[geezer#99]

Originally Posted by GRX

First thing you want to do is find out if you have a 250 or a 292.

250 fuel pump is rearward of the motor mount

292 fuel pump is forward of the motor mount

Also, the 292 has a large coolant bypass hose to the water neck. 250 does not.

You got that fuel pump backwards!
Look again!

[GRX]

Originally Posted by geezer#99

You got that fuel pump backwards!
Look again!

My bad. Thanks for the correction. That is what I get for typing before coffee.

[Custom/Ten]

Hei distributor is a good mod for these 250's. I'm really happy with mine, bought one for an 80 250 and bolted right up didn't have to worry about tuning it for the right advance curve. FYI you need to remove the original resister wire and replace with a nice 12 g wire, none of that cheap parts store wire!