Thanks for all those many comments and I’m still digesting them …..
I have tried to summarize my options, please comment, I might have misunderstood:
1. Edelbrock M-9424-A331
2. Edelbrock torker type A3. Is 1. and 2. the same?
3. Jack Roush Engineering M-9424-A331
4. Jack Roush M-9424-B351 but requires cut down
5. Parker & TFC manifolds from Australia
6. CHI 3V manifold which does not align well
7. Scott Cook dual plane manifold
Which of those manifolds can be purchased with a reasonable budget?
I have Hall Pantera exhaust headers installed. However, the engine is far away from making big horsepowers. It feels like a stock engine and I’m wondering why? Above 4000 rpm the engine feels lazy. Far away from able to get the wheels spinning in first gear.
Yesterday, I removed the camshaft and I found a Howards (seems to be a low budget brand). On the cam shaft I only found the indication “SS I”. I measured the cam and found: Lift at exhaust valve .54; lift at intake valve .48; lobe separation 113; Intake centerline 105; intake duration227@.05; exhaust duration 235@.05.
Any thoughts and advice where to find the missing horses?
Compression rate (CR) of the engine is 10.3 and it was stroked by the previous owner to 371 inch3
Below a picture from my current manifold. I could not find any Part number. It only says Ford MotorSport
Brgds
Hartwig
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