DeTomaso Mailing List: March 1997, Message #135
     



From: "D.Jones" <m203253@ws2200.mdc.com>

Subject: 351C mods - reply

Date: Tue, 18 Mar 1997 15:22:14 CST



Hi All,



I'm currently running a 351C-4V in a '66 Mustang fastback.

It's probably a bit heavier than a Pantera (what do they weigh?)

but it does have a five speed (Tremec) and similar final drive ratio.

Parts include closed chamber heads, MSD/Mallory ignition, Edelbrock

F351 intake, Carter/Edelbrock 750 carb, Harland Sharp roller rockers,

Lunati cam (225 degrees duration @0.050", 0.550" lift, 108 LSA),

1 7/8" headers.  I'm also using the MPG port plates on both the

intake and exhaust.



In retrospect I would have changed two things about my combo.

First, I would have gone to a dual pattern cam.  The exhaust port

doesn't flow nearly as well as the intake (4V heads only, the 2V's

have decent flow ratio) and needs the extra duration on the exhaust.

Second, I'd weld plates into the floor of the exhaust ports.  This

would achieve the same effect as the port plates without the header

gasket problems.



I've heard good things about the hi-rise dual plane intake from

FPP.  Anyone have any experience with it?



Also a note about compression.  It doesn't seem to be a problem

with the closed chamber Cleveland heads.  I know lots of people

who run them at 11:1 with no pinging.



Later

Dan Jones (1 of 3 on the list?)





> Hello All,

>      Although I didn't extensively modify my Panteras yet;  I did have some

> success

> putting those Holstrom port plates on my Boss 302 motor in a '68 Mustang and

> shaved a couple of tenths off my 1/4 mile. A stock motor with a Crane solid

> .570

> .590 lift cam , around 250 dur. @.050 and the plates gave me a best run of

> 13.4

> in the quarter. Since the Boss 302 pretty much uses the same heads, by

> raising the floor of the exhaust the velocity improves. I think MPG in

> colorado also makes a set

> for both intake and exhaust.The plates sell for around $80.

>      This setup with a Doug Nash with the Mcloud angular contact hydralic

> throw out

> bearing was pretty much bullet proof.

>