Need some help.I have a 73 mustang coupe with a 302. Need to be able to pass emmissions. Want to build it up to run around 350 hp. Would it be better to build a 351C or keep the 302? Looking to get the most hp for the money and keep it street legal. Would like to use it for weekend drag racing. Have seen a lot of build kits to go either way. If anyone has some ideas let me know.
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FWIW you car only needs a sniff test at idle and at speed. If it is well tuned and in generally good working condition either a 301 or 351 making the power level you want should pass without issue. However, the extra cubes always make power 'easier' meaning less cam.
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Steady State Loaded/Idle: This test is used for most 1967 through 1995 vehicles in Tucson and 1967 through 1980 models in Phoenix. The vehicle is tested at idle and (depending on vehicle class) at approximately 25 to 30 miles per hour. The results are shown in percent or parts per million.
Standards (I wonder what a 'reconstructed' vehicle is):
I dont think the limits are very high, the 302 passed without the egr working and most of the other emmissions parts disconnected. Only concern was at what point while increasing cam and head size will the car not pass?
351 will give you more torque meaning you dont need as much power to get action...in a big car like a 73 its a no brainer to me.
What emissions do they actually test?
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A 2007 study found on average Australians walk 900 miles a year. We drink 26 gallons of beer. That means, on average, Australians get about 34 miles per gallon.
Not bad hey!
Your caris freakin beautiful!!!! Just though I'd pay a compliment where one was due!
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302 Hyperutetic Internals with 10:5:1 Comp, edelbrock's performer heads, cam, and intake with a holley 650 double pumper and MSD ignition, TCI 2800 stall, Hooker comp. headers with 1 chamber flows and an 8.8 rearend with posi and 373's =327 RWHP
302 or 351
