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6/8/05
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Jay,
I have purchased a '69 Camaro;
The block # 3970010 the heads are #8898920 gm.
My compression test 180 and dyno at rear wheels
187 w/1 psi on fuel at the end of dyno test. I
am planning on installing a holly blue because
of fuel pressure loss. The carb is a 750 d.p.
I purchased this car to bracket race and want
to run in the 12's on high octane gas. I have
a 10 bolt w/ 373 and non posi. Transmission is
350 w/a good kit. Tranny hits hard in all gears.
The cam is a solid lift w/eldabrock performer,
msd 6al and distributor. The car has hooker headers
and flow master exhaust 2"or more. This is
how I purchased the car.
My questions are to use this
block not knowing if it is a 2,4 bolt main, assuming
10.5 compression flat tops w/ 40 bore, the heads
have screw in studs and guide plates but the springs
look stock. Should I take the heads completely
off and change out with trick flow and change
cam to higher lift and go roller? Should I go
to a victor jr. single plain intake? Should I
change out to 12 bolt w 411 and install 3500 stall
to work w/cam? Completely go through motor and
change out rods and pistons. The motor seems to
run really strong but not strong enough. Cost
wise I would like to know your opinion. Max power
183.3 @4250 Max torque 257.8@3000. Dyno test on
motor in this car. H.P. @50 mph 14:10 cyl/disp
8/5.7.
- Ronnie Minard
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Ronnie,
If money isn't much of an obstacle then YES!! to all of your
parts list wishes! But, if you're like most of us and need
to do the important things first I will see what I can do.
You say you bought this for a Bracket car so I am going to
assume there will be no street driving. If you do then fine
but I'm talking racecar here.
First, the block should be a 4 bolt as evidenced by the 010
numbers at the end of the part number. If you can afford it
then by all means buy better aftermarket heads. Not saying
you can't run 12's with these heads but aftermarkets' will
be better. Definitely get a fuel pump, ditch the Performer
and get a Performer RPM or Air Gap, buy a Spool or Positraction,
dump the exhaust for drag racing or at least run 3 in. pipes.
Depending on your tire size you will probably want a deeper
gear such as 4.56. Run as tall and wide of a slick as you
can fit under the car and gear accordingly. As for valvesprings,
150 seat and 300 open is a start. Lastly, buy a GOOD torque
converter from a reputable company. Don't use a "Vega"
converter or any other "old timer tricks". Hope
for the best, hope this helps.
Jay Roeder
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