Same thing for the MSD box, the electronic ignition upgrade, the K&N filter, etc. It's interesting, I've seen / felt the difference just a hot coil can make to an engine's running. The first set of easy upgrades will all provide mild results, but collectively, add up to be a real nice improvement in the running of the engine. More involved upgrades an aluminum 4 barrel intake manifold with thermal barrier coating on bottom and interior and thermal dispersant on the top side, block the heat cross-over a 750 Holley or Demon or Edelbrock carburetor with electric choke a set of long tube / collector headers. (Food for thought, MSD uses the very same ignition modual in their billet racing distributors as the Ford Dura Spark because it is the best and most reliable in the industry) a hot coil such as the MSD Blaster MSD or Blue Max spark plug wires) to contain the electro-magnetic field of the hotter spark) an MSD multiple spark box a K&N air filter run the extended tip spark plugs one step hotter than stock a 500 cfm or 650 cfm Holley two barrel carburetor. I'd recommend for quick / easy upgrades an ignition upgrade to either the Pertronix unit or the Dura Spark. Most have been rebuild, and don't run nearly as well as yours. You are very lucky to have such a good running engine of that vintage - today. Part of the problem is that "smart" rebuilders and car owners armed with the "popular misconceptions" about engines, adversely alter the engines when they rebuild them - believing they are making them better or updating them for "todays" gas and so forth. It's really tough to find a high quality rebuilt engine that can match an original mass produced engine! The auto manufacturers did a very good job mass producing millions of excellent engines. You have an excellent running "factory" engine. Keep those ideas and opinions coming.I am interested!!! I guess I want my cake and to eat it as well. I want it to idle and warm up with the choke the way it was designed to. It is important to me, to not sacrifice driveability and dependability, to gain a few horse power. If anyone knows anything more about them please let me know. I do want to keep it looking more stock than anything that screams "STREET RACER".Īs far as the carb and intake, my thoughts are this: Obtaining a new or factory rebuilt original 4 bbl carburetor (I have seen them online at various places and times) as well as a stock (Australian made) 4 bbl intake for a 2-V Cleveland motor. The car starts right up with no problems at all.so no major rush at this point. I am not sure what just yet, something unobtrusive for sure. I am definitely going to go with an electronic ignition upgrade at some point. That was why I was leaning towards a 4bbl carb/intake combo with electronic ignition.Įveryone else that responded: Thank you all for your thoughts and opinions as well. The car already has a nice, free flowing dual exhaust. GatorGreg: Thank you for your thoughts on this subject. No rebuilds or superchargers or things of that nature, especially if they are really expensive need be discussed. The car does not burn or leak oil and is clean enough to eat off of. The car already has a very free flowing dual exhaust system on it.Īre these two upgrades(?) going to get me any significant HP gains? Or am I just going to give myself a headache? Should the heads be changed to 4-V heads? Any better ways to squeeze more power out of this mill? I have noticed that lots of people here hold the Cleveland in disdain? Any reason why? Growing up, that seemed to be the block to have if you were going to get a 351 car.Īny real advice would be appreciated. I have been thinking about going with an electronic ignition conversion and a 4 bbl carb and intake. It drives nice, idles perfectly, and will put you back in your seat when you get on it and get rubber as well. I have a low mileage (18,800), mostly all original 1970 Cougar.
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