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Messages - vabeach56wagon

#61
This fresh engine is in our '69 X33D80 VIN#124379N658489. Heads are 186's dated Dec 1 '68 and Dec 2 '68.

Will consider swap out of block and heads for late May - early June (prior to 6/16 assembly) block and heads in similar condition.
#62
Maintenance / Voltage at the coil
December 28, 2018, 01:33:55 PM
Bear with me for a second:

I just replaced an off-brand distributor with an MSD 8360 Pro Billet (their ready-to-run version which does not require the box). In checking for voltage at the coil I found 12v at positive side of the coil with the ignition switch in RUN... and 9 volts at start...just the reverse of what should be in place for a points-style original distributor. The MSD needs 12v at RUN.

I haven't pulled the harness nor separated the wiring (yellow and wrapped white?) yet and am wondering how the previous owner could have wired this thing backwards.

As I intend to install an original 480 distributor in the very near future resolving this issue is important.

paul
#63
Maintenance / Re: Power Valve on the 4053 Secondaries
December 21, 2018, 02:58:22 PM
I am at a loss as to why the PO of this car ran 3/8" inlets...but he did. Am still trying to figure out which application has a 3/8" Yblock.



paul
#64
Maintenance / Re: Power Valve on the 4053 Secondaries
December 14, 2018, 12:58:33 PM
To be "correct" I guess I should step down the lines from the Y block....Nah, I'll keep the 3/8".

paul
#65
Maintenance / Re: Power Valve on the 4053 Secondaries
December 13, 2018, 10:28:41 AM
Our Holley 4053 repro carb showed up yesterday: jetted 68 primary; 76 secondary; 6.5PV primary; 8.5PV secondary. I haven't opened up the secondary vacuum can to check the spring. I did find that the inlets are for 5/16" lines and fittings. I switched out the 3/8" inlets from the current Street Avenger. Were the original fuel lines 5/16"?

Thanks

paul
#66
Maintenance / Re: Power Valve on the 4053 Secondaries
December 12, 2018, 04:03:23 PM
I'm at sea level. Current Street Avenger Holley has a 6.5PV on primary with 70's; 78's on secondaries. Plugs clean and milk chocolate.

What would you suggest be the starting points with the 4053?

Stock Z intake; stock exhaust manifolds; chambered exhaust; cold lash at .026; 16* initial 36*total at 2200; 19*vacuum; RJ127C's at .040. Stock 11-1 and std. bore (to my knowledge).

paul
#67
Maintenance / Power Valve on the 4053 Secondaries
December 12, 2018, 09:57:30 AM
Is that PV absolutely necessary or have others plugged it?
#68
Wasn't Bill Thomas one of the early vendors who supplied the Z28's headers to GM?
#69
Trans-Am Camaros / Re: Unusual valve covers and intake ??
November 28, 2018, 01:24:08 PM
It appears that the valve covers have been swapped from side to side....to clear the intake it would seem.

They resemble slightly the GMPP covers on my old '56:



paul