How much nitrous is safe at 12 degrees timing

[stevesLX]

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I have a 89 LX that I am currently spraying 75HP dry thru TB. This is a ZEX kit and it automatically adjusts fuel pressure through a fuel jet and vacum. My timing is set at 12 degrees right now. I want to bump up my shot up to 100 HP but according to the tuning sheet that came with the kit it says to retard my timing 2 degrees. And that would actually be retarding it to 8 degrees seeing they use the factory specs. I have a F303 cam and the car runs like absolute dog crap at anything under 12 degrees. As a matter of fact it most of the time stalls out at 10 degrees and when it does idle the whole motor shakes and it idles at around 400-500 RPMS. So can I spray 100shot at 12 degrees advanced safely and w/out detonation or not? My kit is a ZEX 5.0 dry kit part # 82015. I am also using a ZEX traction control window switch. I have it set up to spray from 3000-5500 and to start spraying in 3rd gear and on. I have been considering programming it to start spraying in 2nd gear but even with drag radials I think I will lose traction spraying in 2nd gear ecspecially since its going to start as soon as I hit second under WOT. But I really need to know about the safety of the 100 shot at 12 degrees timing. My engine is as follows:
302 stock block with new rings seals bearings(about 3000 miles on them now. my rods and stock pistons reconditioned)
Edelbrock 5.0 performer intake manifold
75MM BBK TB
73MM C&L MAF
24# injectors
255LPH holley fuel pump
BBK fuel pressure regulator
MAC CAI
F303 cam
WC T5 tranny
Aluminum drive shaft
BBK full length headers 2 1/2 flowmaster exhaust

 

[Modular2v]

well at wide open throttle i can assure you the car is running at ALOT more than 12 degrees. General rule is retard the timing 2 degrees for every 50shot of N2o. Use the intitial as a foundation. 12 initial should be fine but check what your total timing is and get back with us

 

[stevesLX]

If I am not mistaken my total timing is about 24 maybe a little bit more but I know its under 30

 

[Modular2v]

If I am not mistaken my total timing is about 24 maybe a little bit more but I know its under 30

another 25 worth of N2o shouldnt be a problem at all....im running 15 initial and 32 total but mine is a differents story. You should be absoultely fine but the only 100% sure way to know is to get it on a dyno or get some A/F ratio readings. IF it were my car i wouldnt even hesitate to do it if i was running colder stepped plugs. If you do decide to do it listen to the motor

 

[90bluecoupe]

I have a zex dry kit and i run 14 degrees timing and spray a 125shot and have been for about 4 years. You should be fine.

 

[88mouse]

100 will be fine go down to steps on the spark plugs.

 

[JamesB88]

Not really related to your problem but i was wondering where you put the nozzle in at, after the MAF or before? Ive had some people tell me to do it both ways.

 

[The AntiRice]

always run n2o after the maf