Join Date: Dec 1999
Location: Big D little a-l-l-a-s
I have almost the exact situation as yourself. I have a 396 in my 69 but rather than go out and get a 502, I choose to modify the one I have now because it is a 396 although NOT the original one.
The car now produces around 450 at the motor and with a 150 shot, it goes maybe 575-600HP. At this point in time, I would be losing power if I switched over to a 502 or RAMJET.
Now it would have been much EASIER to make this kind of HP with more cubic inches but I wanted to try and do it with a 1969 factory supplied short block.
By the way there are some definite problems with delivery on that RAMJET 502 which we can get into if you want. Suffice to say I have TECHNICALLY had one on order for over 5 months with no promise yet of delivery. Thank GOD no money changed hands on this or I assure you I would have someone's head on a stick!!!
The GM boys on the Power Tour were VERY VAGUE on the Ramjet 502 although they had one in one of the cars that they were driving on the tour. Apparently wide open throttle is not a problem but part throttle operation IS. This leads me to beleive they are having some problems with fuel mapping but they flat wouldn't say.
Second rumor was that they were having a supplier problem in regards to the people that are manufacturing the manifold for them but who knows???? I beleive you can get the small block RAMJET though.
Anyhow, IMO your car would be more valuble to a potential purchaser if it had in it a powertrain combination that was available for that particular year model EVEN THOUGH it might not actually be a numbers matching engine. I find this to be true in my area (Dallas) but I wouldn't know if the same holds true in other areas.
[This message has been edited by sr71bb (edited 08-20-2000).]