[Dragncar]

If you need something to get you by until a full rebuild, maybe water injection. Its bolt on, don;t even have to pull the heads.
Modern ones are 500ish $

Designed for boost but they have a controller so they should be able to work without it. Call tech. This one is for a carb or throttle body.
https://www.summitracing.com/parts/sno-20010

Or old school. 90$ on E Bay. I ran one back in the 80s for a bit.
https://www.ebay.com/p/1728425361

Might get you by and better than a quench lilling .080 head gasket.

[1969GPSJ]

Originally Posted by Dragncar

If you need something to get you by until a full rebuild, maybe water injection. Its bolt on, don;t even have to pull the heads.
Modern ones are 500ish $

Designed for boost but they have a controller so they should be able to work without it. Call tech. This one is for a carb or throttle body.
https://www.summitracing.com/parts/sno-20010

Or old school. 90$ on E Bay. I ran one back in the 80s for a bit.
https://www.ebay.com/p/1728425361

Might get you by and better than a quench lilling .080 head gasket.

I used water injection on another car a number of years ago. Edelbrock actually had a system at that time. Worked really well with 50% distilled water and 50% methanol. I just seemed to run out at the most inconvenient times. If you used tap water the spray nozzel would end up getting hard water deposits and clog.

[Dragncar]

Water injection today is not the same as the old Edelbrock Vari-Injections. Technology always moves forward.
I doubt the folks running these modern water-meth injection are saying "don't waste your money".
There is some interesting new systems out there, most made for boosted engines. You have to look for old school NA carb water-meth systems.
But it does work, dyno proven .
https://prometh.com/collections/carb...ts/mist-a-carb

https://www.summitracing.com/search/...ection-systems

Here is a MT article on a boosted 302 in a 65 Mustang.

https://www.motortrend.com/how-to/ho...onation-blues/

428 Pontiacs, that 390 HP 428 had the highest horsepower of any Pontiac production engine.
With D port heads and cast pistons. It should have been in GTOs and Firebirds. Chevy had 427s but we could not have 428s ?
And just think is we would have been allowed to fight fair with high CR 428s and 455s with forged rods/pistons and RAIV heads and the rest of the goodies ?

[Gach]

Originally Posted by 1969GPSJ

Moonshine (with a little water) or Vodka also worked.

They do make 120 Proof Vodka..LOL just carry gal of distilled water and a fifth of vodka. Its funny with todays marketing they can sell to allot of still wet behind the ears. It did work pretty good on my buddy’s Chevelle. Long enough to make to next package store.LOL. Funny guy saw the bottle in his trunk he said. No No I’m not a alcoholic.